表格默认全选

SelectGridAllRows(OrderList_, true);
private void SelectGridAllRows(JQDataGrid Grid, bool b)
        {
            BoundContext context = (BoundContext)Grid.GridContext;
            string rowId = "";
            for (int i = 0; i < Grid.TotalRowCount; i++)
            {
                rowId = context.MakeAutoRowId(i);
                context.SelectRow(rowId, b);
            }
        }